WotLK Disconnect after login (new player)

[Thoughtz]

HI guys,
I cat instant disconnected after i login with mailadress.

Connection log:
10/27 19:53:39.427 GRUNT: state: LOGIN_STATE_AUTHENTICATING result: LOGIN_OK
10/27 19:53:39.446 GRUNT: state: LOGIN_STATE_DISCONNECTED result: LOGIN_OK
10/27 19:53:39.446 GRUNT: state: LOGIN_STATE_FAILED result: DISCONNECTED

I searched internet also, it seems to happens alot, but i cant see a solution?
Is this something that fix itself by time?

I tried:
Run as Admin
reinstall / restart pc

[Thoughtz]

i used username, not email, and it starts